RETRIEVAL TERMINAL DEVICE, RETRIEVAL SERVER DEVICE, RETRIEVAL TREE COMPRESSION METHOD, AND CENTER-LINKED RETRIEVAL SYSTEM

摘要

A retrieval tree data storing unit configured to store node information corresponding to the relationship between information configuring data to be retrieved and information of a lower layer configuring the data rather than the information and retrieval tree data corresponding to entity identification information for identifying entity data representing an entity of the data to be retrieved which is specified by the information or the lower information included in the node information; an input controlling unit configured to output a candidate of the data to be retrieved based on the information or the lower information inputted by a user and the node information stored in the retrieval tree data unit; and an entity data acquiring unit configured to transmit to the retrieval server device a retrieval request including the entity identification information corresponding to the information or the lower information included in the candidate of the data to be retrieved.